I'm often asked what blog sites I like to read and there is never an easy answer. There's a lot out there, but I do try to keep an eye open for opportunities that might help us reach the end goal, may it be getting published, or finding an agent, or improving our writing. I try to visit these sites weekly.
Deborah Halverson, former editor extraordinaire gives good sound advice and often gives insight on the future of children's lit.
Run by an agent that gives useful information to tune up your query. Queries are agony but a necessary evil if you want an agent. Read EVERYTHING in her blog before writing your query, She will save you hours of work.
I follow the Lerner Book blog because I have a soft spot for Minnesota anything. Lerner sometimes has open call for middle grade or young adult books. Keep an eye on this site.
I've listened to Mary Kole speak many times and her book on writing Great Kid Lit sits worn and tattered on my bookshelf. Take a look at her blogsite.
I also follow sites that offer twitter contest or opportunities to submit and get a critique. Take a look at the following.
Brenda Drake started Pitch Wars and Pitch Mad eight years ago. A contest with an opportunity to get critiques from agents.
Kidlit 411 has a month by month list of ongoing contests.